<template>
    <div>
        <el-form :inline="true" class="demo-form-inline">
            <el-form-item label="一级分类">
                <el-select placeholder="请选择" v-model="cForm.category1Id" @change="handle1" :disabled="show">
                    <el-option :label="c1.name" :value="c1.id" v-for="(c1,index) in list1" :key="c1.id"></el-option>

                </el-select>
            </el-form-item>
            <el-form-item label="二级分类">
                <el-select placeholder="请选择" v-model="cForm.category2Id" @change="handle2" :disabled="show">
                    <el-option :label="c2.name" :value="c2.id" v-for="(c2,index) in list2" :key="c2.id"></el-option>
                </el-select>
            </el-form-item>
            <el-form-item label="三级分类">
                <el-select placeholder="请选择" v-model="cForm.category3Id" @change="handle3" :disabled="show">
                    <el-option :label="c3.name" :value="c3.id" v-for="(c3,index) in list3" :key="c3.id"></el-option>
                </el-select>
            </el-form-item>
            <el-form-item>
            </el-form-item>
        </el-form>
    </div>
</template>
<script>
    export default {
        name: 'CategorySelect',
        data() {
            return {
                // 收集一级分类的数据
                list1: [],
                list2: [],
                list3: [],
                cForm: {
                    category1Id: '',
                    category2Id: '',
                    category3Id: '',
                }
            }
        },
        props: ['show'],
        mounted() {
            // 获取一级分类
            this.getCategory1List()
        },
        methods: {
            //获取一级分类数据的方法
            async getCategory1List() {
                let res = await this.$API.attr.reqCategory1List()
                if (res.code == 200) {
                    this.list1 = res.data
                }
            },
            async handle1() {
                this.list2 = []
                this.list3 = []
                this.cForm.category2Id = ''
                this.cForm.category3Id = ''
                const { category1Id } = this.cForm
                this.$emit('getCategoryId', { categoryId: category1Id, level: 1 })
                let res = await this.$API.attr.reqCategory2List(category1Id)
                if (res.code == 200) {
                    this.list2 = res.data
                }
            },
            async handle2() {
                this.list3 = []
                this.cForm.category3Id = ''
                const { category2Id } = this.cForm
                this.$emit('getCategoryId', { categoryId: category2Id, level: 2 })
                let res = await this.$API.attr.reqCategory3List(category2Id)
                if (res.code == 200) {
                    this.list3 = res.data
                }
            },
            handle3() {
                const { category3Id } = this.cForm
                this.$emit('getCategoryId', { categoryId: category3Id, level: 3 })
            }
        },
    }
</script>
<style lang="">

</style>